Apparatus for drying can ends containing a sealing compound



, 20, 1932- F. KRUEGER ET AL I 1,891,646

APPARATUS FOR DRYING CAN ENDS CONTAINING A SEALING COMPOUND Original Filed June 12, 1929 85heets-Sheet 1 B l. 5 4 a i i ii W I23 I I4 4 H .i I S I I08 i 2/ I I I /22 :5; i

23 I W 35 20 1. irin I Is 7 h-l U 4 3 8 24 7 38 7 I I INVENTORS. my W44 TTORNEYS.

$41 A ra /MC Dec. 20, 1 32.

F. KRUEGER ET AL APPARATUS FOR DRYING CAN ENDS CONTAINING A SEALING COMPOUND 8 Sheets-Sheet 2 Original Filed Jun? 12, 1929 {W 2/; W Y ZQ r 4 M- INVE TORS. A9

' ATTORNEYS.

Dec. 20, 1932. F K U E ET AL 1,891,646

APPARATUS FOR DRYING CAN ENDS CONTAINING A SEALING COMPOUND Original Filed June 12, 1929 8 Sheets-Sheet 4 l I I IN V TORS. 3%

QM fiIZVEYS.

1932- F. KRUEGER ET AL 4 APPARATUS FOR DRYING CAN ENDS CONTAINING A SEALING COMPOUND Original-Filed June 12, 1929 8 Sheets-Sheet 5 Dec. 20, 1932.

F. KRUEGER ET AL APPARATUS FOR DRYING CAN ENDS CONTAINING A Original Filed June 12, 1929 EifJo. XI

1,891,646 SEALING COMPOUND 8 Sheets-Sheet 6 fiTO RNEI S. I

g 76' o J W 1 INVE TORS. .5 m

Dec. 20, 1932. F, ER ET AL 1,891,646

APPARATUS FOR DRYING CAN ENDS CONTAINING A SEALING COMPOUND Original Filed Jun? 12, 1929 8 Sheets-Sheet 7 1 15. @1-

llllAL IN V EN TORS.

2% W54 IM v ATTQRNEYS.

Dec. 20, U R ET AL 1,891,646

APPARATUS FOR DRYING CAN ENDS CONTAINING SEALING COMPOUND Original Filed June 12, 1929 8 Sheets-Sheet 8 XVI XVII 57 i 1e 2: 3414 ml J XVI o 34 I4 :2 15 I6'"26 Y Y 31 big- 1v "rags:

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Patented Dec. 20, 1932 UNITED STATES PATENT OFFICE FRANK KRUEGER AND HENRY DOUGLASS, OF SAN .LFRANCISCO, CALIFORNIA, AS-

SIGNOBS TO PACIFIC CAN 00., BI $1 1121 FRANCISCO,

OF NEVADA CALIFORNIA, A CORPORATION APPARATUS non DRYING oAnnnns conrnimivq A SEALING COMPOUND Original application filed June 12, 1928, Serial No. 370,444. Divided and this application filed December 20, 1930.

can ends with the sealing compound; to provide a rotary drier whereby the can ends are dried through the medium of hot air; to

provide means whereby the can ends are delivered :one by one to a table within the drier and positioned in stack formation thereon; to pro ide means for imparting an intermittentstep-by-step rotary movement to the table in such .a manner that the table remains stationary while a stack is being formed, and is then rotated fora small portion of a revolution to receive asecond stack etc.; and, further, to provide means whereby the lining and delivery :of-can .endsrto the drier is automatically stopped when a stack containing a predetermined number of can ends is completed and while the table is being rotated in order to bring a new portion of its surface to the stack receiving position.

The invention is shown by way of illustration in the accompanying drawings, in which; 7

:Fig. 1 is a side elevation of the machine, 1

Fig. 2 is a central vertical longitudinal section of that part of the machine whereby the can ends are first curled, secondly lined with the sealing compound, and third delivered to the drier,

Fig. 3 is a cross section taken on line III-III of Fig. 2,

Serial No; 503,785.

drier housing, said view also showing the;

table upon which the stacks are formed,

Fig. 9is a detailed plan view of the Geneva movement whereby intermittent rotary motion is transmitted to the drier table,

Fig. 10 is a detailed sectional View of'a,

portion of the clutch mechanism through which theGeneva'movement is intermittently operated, V

Fig. 11 is a cross sect-ion taken on line XIXI of Fig. 10, J

Fig. 12 is a vertical cross section taken on line XIIXII Fig. 2, said section showing the aligning mechanism and also the mechanism whereby the counting ratchet gear 'is actuated, p

Fig. 13 is a wiring diagram showing the several switches and magnets employed-in conjunction with the parts of the mechanism.

Fig. 14 is a plan view of the can end feeding mechanism, showing the position of parts just 'before' the can end separating knives enter the'stack. 1

Fig. 15 is a similar view, showing the position of parts after the can end separating knives have entered the stack.

Fig. 16 is a cross section through the top of "the table, taken on line XVIXVI of Fig. 14, and drawn to a largerscale.

- Fig. 17 is a longitudinal section through the magazine, taken on line XVIL-XVII of Fig. 14, drawnto a still'larger scale.

Referring to the drawings inldetail, and particularly Fig. "-1, A indicates a substantially cylindrical-shaped housing which encloses a drying chamber. fOne side of the housing is provided with an opening which extends from the rod 2 to the rod 3. The can ends The upperend of the housing is closed a cover or a head member B, while the lower end of the housing is closed by a table C, this table serving the function of receiving and supporting the can ends to be dried. The table is in this instance divided into sixteen compartments, said compartments being separated byvertically disposed partition plates, such as indicated at l' leaving the ends of the compartments adjacent the periphery of the table open. Guide rods 5 are mounted in each compartment and the can ends to be dried are delivered at the table surface and are stacked between the rods. lVhen the machine is in full operation each compartment will contain a stack of can ends. It takes approximately thirty minutes for the table to make one complete revolution, hence when the can ends are delivered to the table and the stack is completed, it will remain in the drier approximately thirty minutes whereafter it will be removed so as to make place for further stacks of can ends. Warm or hot air is circulated through the compartments, and upwardly and around each stack, while it remains in the drier, and the manner of delivering the hot air and of uniformly distributing it into the several compartments will now be described.

Forming a part of the head member B, and extending downwardly therefrom is a perforated cylinder generally indicated at C. Conneetedwith the upper end of the head B is an air heater 1), to which air is delivered in any suitable manner. The air in passing through the heater D is heated to a desired temperature. It is thendirected downwarcly into the cylinder, C. .The air escapes through perforations formed in the cylinder C, and as these communicate with the several compartments containing the stacked can ends, air will circulate around the can ends and then upwardly and will finally cscape into a discharge passage E, which is also supported by the head 13. The air, after passing through the passage E, finally escapes through a stack or exhaust pipe F. The discharge duct or passage E has a bottom portion (see Fig. 7) such as indicated at 6. This is provided with a series of circular holes, generally indicated at 7, the holes aligning with the respective compartments in which the can ends are stacked. A suction blower or the like may be connected with the exhaust pipe F and suction is thus continuously maintained in the discharge duct E, causing the air to be sucked upwardly through the perforations or holes 7. This is important as the air is in this manner drawn downwardly through the heater D and the cylinder C, and as such will pass through the perforations in the cylinder G into the respective compartments from where it will be drawn upwardly in a column form around the stacked can ends and then through the openings 7 into the discharge duct, thereby causing uniform distribution around the peripheral edges of the can ends.

It should also be noted that the stationary perforated cylinder C is provided with a bottom section, such as indicated at 8, and that this has a central opening 9 formed therein. Part of the air discharges downwardly through this openin and into a space 10. The air thus passes over the surface of the table C, and it then discharges through perforations 11 which line up with the lowermost can end or ends in the stacks, thus insuring drying of the lowermost ends as well as the upper and intermediate ends.

The drier shown in the present instant is connected with a machine which curls the can ends and fills the curled portion with aseal ing compound. This machine also delivers the can ends one by one to the drier, and it places the can ends in stack formation in the drier.

The mechanism whereby the can ends are curled and the curled edge partially filled with the sealing compound is best illustrated in Figs. 1, 2, 3, 4i, 5 and 12. The machine consists of a main frame G, having a base portion H whereupon the drier housing A and a part of the driving mechanism is supported, the main frame .G and the base portion H being supported by legs I. The main frame supports a table J, and this in turn supports a can end receiving magazine 14, a can cut curler generally indicated at 15, and a compound feeder 16. The can ends to be curled and filled with the sealing compound are placed in stack formation in the magazine 14:, and they are released one by one from the bottom end of the magazine and are then first advanced through the curler secondly to the sealing filler, and third to the table of the drying machine. The can end magazine consists of the base 12, secured to the top ofthe table J, and provided with a bore 13, made large enough to accommodate a stack ofcan ends. "Upright guide rods 14 extend above the base 12, being adapted to guide the stack, and a main can end'feed plate 26 is fitted in a recess in the table, giving support to the stack.

Above the plate 26 are placed two sliding bars 34, fitted in guides, provided in the base casting 12 of the magazine adjacent the bore 13, and united by a cross bar 39, forming the magazine feeder.

Can end separating knives 56 are secured to the sliding bars 34-, projecting for a short distance within the bore 13, of the base, as shown in Figures 14:, 15, and 16.

The knives 56 extend above the plate 26 for a distance slightly more than the thickness of a can end, as shown in Fig. 17, and during the movement of the slide from the position shown in Fig. 1 1, towards the left, the knives enter the stack next above the lowermost can end, leaving said can end resting upon the can end feed plate 26, and giving support to the rest of the stack.

hen the plate 26 comes to the position shown in Fig. 15, the can end drops off the plate onto the table and in front of the fingers 2S, ready to be carried by them to the position a upon the forward movement of the plate.

The mechanism whereby the I magazine feeder is actuated is shown in Fig. 1. It consists of an eccentric, generally indicated at 17, which is connected through means of ailinlr 18 with a crank arm 19, this arm is secured on the lower end of a vertically disposed shaft 20 and the upper end ofthis shaft carries an arm 57 provided with an operating link 21 wherebythe feeder of the magazine 1% is actuated. The magazine feeder operating mechanism is driven from a shaft 22, which is continuously driven when the machine as a. whole is in operation. Shaft 22, besides operating the magazine feeder, also operates a main feeder, shown in F i 2 through means of a rocker arm 23. One end of the rocker arm is'connected throu h a connecting rod 2%, which in turn is connected with a crank on the shaft 22, the opposite end ofthe rocker arm 23 being connected through a link 25 with the main can end feeder.

This feeder consists of a rectangular shaped plate generally indicated at 26. A rectangular shaped opening 27 is formed in this plate. S .pported by the sides of the plate, and pro- ,ecting inwardly over the opening 27 are a plurality of pairs of feeding fingers, indi cated at 28,29 and 30. These feeding fingers are disposed at the same level as the can ends, and in the forward movement of the rectangular plate 26 in the direction shown in Fig. bythe arrow a they engage the rear edge of the can ends and move them forwardly; the fingers 28 move the can end fromthe position shown in dotted lines at 14a, where it was released by the magazine feede to the position 15a, where it is engaged by the curler, and the flange of the can end is curled; the fingers 29 engage the can end previously delivered to the curler at 15a, and carry it to p the positionlGa, where it is engaged by the liner, and the curled flange is filled with sealing compound; the fingersBO move the previously delivered can-end from the liner at 16a, and deliver it to position 31a, and the pivoted dog 31 engages the can-end at 31a, and places it on the surface of the table C under the stack.

hen the frame 26mor es back on its return stroke, the fingers 28, 29 and 30, and the pivoted dog 31, return to their original positions, shown in Fig. 4, leaving the can-ends in their advanced positions; the pivoted dog 31, riding over the can-end at 31a, the fingers 30 and 31 passing underneath the can-ends at 16a and 15a, respectively, which can-ends become elevated above the level of the fingers,

as will be hereinafter described, while the fingers28 pass the position l ia before a can-' end is released from the can-end magazine.

The can ends are stacked on the table in the following manner. By referring to Fig.

2 a number of can ends are shown in stacked and the supporting surface of the table, as

shown at Fig. 2. When a can end'engaged by the pivoted dog 81 is moved forwardly, the leading edge of the can end will enter the space and will assume a position below the peripheral edge of the bottom-mo st can end in the stack before coming in contact with the inclined surface 83. It then engages this surface and rides up the incline to insert itself below the stack. In other words, each can end delivered or ejected by the dog 31 is delivered to the bottom of a staclr and as many can ends may be stacked vertically as desired.

in other words, the height is only deter mined by changing conditions, or the length of the shipping cases 111 which they are packed. In some instances, as many as two hundred and fifty can ends are placed in a.

stack and when that number of ends has been stacked it is obviously necessary to stop the feeding operation and to rotate the table for a small portion of a revolution so that the stack when completed may be moved into the drying chamber, and so, that a new compartment is moved into position for the reception of the next stack to be formed.

An automatic mechanism has been provided for stopping the feeding, curling, the lining and the delivery of can ends to the table during this period, but before describing this mechanism it is essential that other parts of the. mechanism be first described.

vFirstof all, let itbe understood that the machine as a whole is driven from a main drive shaft, generally indicated at 35 (see Fig. 1). drive shafts, indicated at 22 and 36, the shafts 22, 35 and 36 are continuously driven, shaft 36 bem g driven through a cham drive 111Cll-' cated at 37, and the shaft 22 through a chain drive indicated at 38. Shaft 36 serves only one functionto-wit, that of driving the mechanism whereby the drying table C is intermittently rotated. Shaft 22 on the other hand serves several functions, first that of driving the mechanism wherebythe magazine feeder is actuated, secondly that of driving the main feeder shown in Fig. 4,

third that of driving the curler generally 7 indicated at 15, andfourth that of driving the liner mechanism generally indicated at This shaft drives two intermediate 2 gaged and the Geneva movement to be 16 or in other words, the mechanism which delivers the sealing compound to the can ends.

The mechanism driven by the shaft 36 will nextbe described. This mechanism imparts an intermittent rotary motion to the drying table C, and is best illustrated in Figs. 1, 6, 7, 9, and 11. Shaft 36 is journalled in a bearing, generally indicated at' lO, see Fig. 7. Keyed or otherwise secured on the shaft 36 is a continuously driven clutch member 11. Forming an extension of the drive shaft 86 is an intermittently driven shaft 36a, which remains normally at rest. This shaft aligns with the shaft 3 and it carries a bevel gear 42 and a clutch member e3. The clutch member 13 is partially enclosed by the continuously driven clutch member all. Clutch member 13, see Fi 11, carries a spring actuated pawl 4% and when it is at rest the pawl is held in a depressed position by means of a dog it? pivoted at 51. When the dog is swung about its PlVOb so that the lower edge thereof is moved from its normal position, shown in'lTigs. 7 and 10, towards the left, and out of alignment with the protruding portion of the pawl 1 the latter springs outwardly and engages a shoulder 46 formed on the interior surface of the continuously driven clutch ll, be "eby forming a driving engagement between the clutch members a1 and a3, and causing power to be transmitted to shaft 36a when such engagement 1s made.

The shaft 36a will continue to revolve until the dog a5 is again brought to the position shown in '7 and 10, when the lower end of the dog i5 will again be in alignment with tl e projecting end of the pawl at and until the said projectin end will enter beneath the end of the dog When shaft 36a is rotated power is transmitted to a vertically disposed shaft ll? through the gear 42 and an intermeshing gear 48. Shaft -17 in turn operates a Geneva cam indicated at 49, which in turn operates a Geneva star indicated at 50.

Dog l5 normally holds the pawl 4 in a depressed position, but it is moved out of engagement with the pawl whenever a stack is completed, so as to permit the clutch to be enoperated, so as to impart rotation to the table. The dog 45 is pivotally mounted as at 51, see Fig. 7, and it is provided with a crank arm 52 which is connected through a link 53 with the armature 54 of a magnet 55. This magnet is energized at the time a stack is completed, and at no other time, and it is merely energized for such a period of time as will be required to rotate the drying table C one-sixteenth of a revolution, this being due to the fact that the table is provided with sixteen drying compartments, as shown in Fig. 8, and the Geneva star is consequently provided with sixteen slots and segments. The manner in which the circuit is closed v present invention, but parts of the mechanism actuated thereby do form a part-0f the invention and it is thought more or less essential to submit a brief description of the linerv mechanism and the curler mechanism.

The curler consists of a head member or chuck 15?), secured on a shaft 150 which is journalled in the bearing 15d. Disposed below the chuck member 15?) and mounted to permit both rotary and vertical movement is a shaft 60. This shaft carries a co-operating chuck 61 upon which a can end is disposed when moved from the first to the second position shown at 15a in Fig. 4.

The liner mechanism is similarly provided with-a chuck 166 secured on the shaft 160 journalled in the bearing 1601. A shaft 62 capable of both vertical and rotary movement cooperates therewith and this shaft is provided with a cooperating chuck 63 upon which the can end is deposited when assuming the third position indicated at 16a in Fig. 4. The shafts and 62 are driven in unison from a centrally disposed gear 64: which intermeshes with the pinions'65 and 66 secured on the respective shafts 60 and 62. Gear 6% is in turn continuously driven from shaft 22 through means of bevel gears, such as indicated at 67 and 68. The shafts 60 and 62 are both provided with collars, such as shown at 69 and these collars are engaged by a fork-shaped lever 70 which is operated through means of a link 71, a pusher rod 7 2, and a cam 7 3 (see Fig. 3) cam 73 being also secured on the shaft 22. In other words, both of the shafts indicated at 60 and 62 are lifted in unison by means of the rocker arm 70 and cam 73 and they are both rotated in unison through means of the gears 64, and 66. It shall be noted that the timing of the movement of the feeder plate 26, relative to that of the shafts 60 and 62, is such asto cause said shafts to be at their upward positions at the time the fingers 29 and 30 are moving on their return stroke and while passing the positions 15a and 16a, respectively.

The vertical movement of the shafts 60 and 62, together with the respective chucks supported thereby and indicated at 61 and 63 is comparatively small. If a can end is deposited on each chuck 61 and 63 vertical movement willbe transmitted to the upper chucks indicated at 15?) and 1617. On the other hand, if can ends are notdeposited on the chucks 61 and 63, no vertical movement will be transmitted to the chucks 15b and 161). This is important, particularly in connection with the liner, as the vertical movement imparted to the chuck 16b and the shaft 160 serves the purpose of actuating other mechanism, first a valve whereby the flow of sealing compound tothe can end is controlled, and secondly a counting mechanism which determines the number of can ends in the stack. The mechanism whereby the valve controlling the flow of compound is actuated is best illustrated in Figs. 2, 3, and 5.

By referring to Fig. 2 it will be noted that. the vertical shaft 160 is provided with a collar, indicated at 160. This collar will, during vertical movement, engage theouter end of a lever indicated at 7 6. Thislever is connected throughmeans of a link 77, with a. crank arm 78 secured on a shaft 79. This shaft also carries a cam, as indicated at 80. The valve through which the compound s delivered is generally indicated at 81. It 1s normally closed, but it is adapted to be opened through means of a lever 82, one end of which engages a collar 83 secured on the valve stem 84. The lever 82 is pivoted as at 85, and it is provided with a short arm, as indicated at 86. This arm lies directly above the sliding bar generally indicated at 87. This sliding bar is slotted and pivotally mounted in the slotted portion is a dog 88, which is normal ly held in a depressed position, or out of engagement with the cam 80, by means of a spring 89. The outer end of the slide bar 87 is beveled, as at 90, and it is adapted to be engaged by the upper beveled end 91 of a pusher rod 92, this pusher rod being actuated by a cam 93 secured on the shaft 22.

During the rotation of the shaft 22 the pusher rod is raised once'during each revolution. The upper end 91 accordingly engages the beveled end .90 of the sliding bar, and thus imparts an inward reciprocal movement thereto. If the dog 88 remains in its depressed position no movement is imparted to A, tl e arm 82 and the valve 81 will remain closed. On the other hand, if lever 7 6 is engaged at. its outer end indicated at 75 by means of the collar 16c, rotary motion will be transmitted through a link 77 to rock the shaft 7 9; Cam will thus swing upwardly and raise the dog, and hence bring it into en gagement with the lower end of arm 86, hence when lever 7 6 is actuated the dog 88 is raised, rocker arm 82 will be actuated and a valve 81 will be opened. In other words,if a can end isintroduced between the chuck members 16?) and 63 vertical movement will be transmitted to the shaft 160 and collar 16?),

and valve 81 will be opened to deliver sealing compound to the can end. On the other J hand, if no can end is deposited on the head whenever the shaft 160'is raised, and it remains stationary whenevershaft 160 remains stationary. The arm 94 is connected through means of a link or rod 95, with a rocker'arm 96. This rocker arm is pivotally mounted on a shaft 97, and the outer end of. the rocker arm supports a pawl 98, this pawl engaging a ratchet gear 99 which is freely journalled on the shaft 97. i I This ratchet gear functions as a counter and determines the number of can ends which each stack will contain. contain two hundred and fifty ends two hundred and fifty teeth will be formed on I the gear 99, and it'will make one completerevolution during the formation or building up of each stack. When a revolution is completed a trip pawl, indicated at 100, will engage the outer endof a rocker arm 101. This rocker arm is pivotally mounted on a shaft 102 and this shaft carries an arm-103 on which is mounted a pair of switch members 104 and 105, which are secured to it at different angles, the switch member 105 being set at an angle which is less'than the angle of the switch member 104. a The switch members are of the mercury tube type, that is, short glass tubes'are provided which carry a pair of electric terminals, such as indicated at 104a and 105a. Each tube contains a small amount of mercury and when the arms 101 and 103 assume the position shown in Fig.13 the tubes will be so inclined that the mercury will run to one end of each tube, keeping the clrcuit open. On the other hand, when the arms 101 and 103 are tiltedby being engaged by the trip lever 100, the tubes will be tilted in the opposite directionand the mercury will run to the opposite end of the tubes and will close an electric circuit first betweenthe contact terminals 105a and then between the terminals 10 1a. The switch 104 controls the circuit through the clutch actuating magnet, indicated at 55, while the switch indicated at 105 controlsthe circuit through a similar magnet indicated at 106. This magnet, by the way, controls the release of can ends from the magazine 14, and will hereinafter be re ferred to as the magazine magnet. The switches 104: and 105 complete the circuits through the magnets 55 and 106, while the switch indicated at 117 breaks the circuits. This switch is controlled by a cam, such as indicated at 118, and this cam is secured on If the stack'is to 1 shaft 47 which drives the Geneva movement.

The operation and function of switch 117 will hereinafter be described.

The mechanism actuated by the magnet, indicated at 106, is best illustrated in Figs. 1,2 and 13. The magnet 106is provided with an armature 107 and this is connected through means of a link 108 with a crank arm 109 which is secured on a shaft 110. This shaft extends crosswise of the table J, and it carries a rocker arm 111 see Fig. 2). The lower end of this rocker arm is forked, and it engages a pin 112 at one end of a sliding plate 113. \Vhen the magnet 106 is energized a rocking movement is transmitted to the shaft 110. This'imparts a rocking move ment to the rocker arm 111 and this in turn engages the pin 112 and moves a slide plate 113 in under the magazine 14, thereby shu ting off the supply of can ends to the tables. This takes place when a stack of can ends has been completed and while the table is being rotated to assume a new stackreceiving position.

The operation of the magazine as a whole will be as follows:

lVith the magazine 14 filled with can ends, and with the machine in operation, it will be first stated that shafts 35, 36 and 22 are continuously operating. The clutch members 41 and 43 which cooperate with the shaft 36 to transmit power to the shaft 36a are, however, normally held out of engagement and the table-G within the drier will accordingly remain stationary.

Shaft 22, however, actuates a number of devices. First the magazine feeder which is actuated through means of the eccentric 17, secondly the main feeder 26 which is actuated by the rocker arm 23, third the curler indicated at 15, and fourth the liner indicated at- 16. These several mechanisms are operating continuously, and during each reciprocal movement of the main feeder a can end will be released from the magazine 14 and will drop into the position shown at 14a in Fig. 4. The can end will be transferred to the second position shown at 15a where the flange of the can end will be curled over third to the position shown at 160 where the curled over flange will be filled with sealing compound from the nozzle or valve 81; fourth it is transferred to the position shown at 31a; and fifth, it is transferred from this position by means of the pivotedpawl 31 to the table where it will assume the bottom most position in the stack,indicated at 32.

These several operations will continue and the ratchet gear 99 will be moved a distance of one tooth as each can end is transferred from the table J to the table C. That is, each upward movement of shaft 160 will transmit movement to the arm 94. This in turn transmits movement through the rod or link to the rocker arm 96, and the pawl 98 carried thereby will in turn engage the teeth of the ratchet gear and transmit a movement equal to one tooth.

A little while before two hundred and fifty can ends have been delivered to the table C, that is, before the stack will be completed, the trip pawl 100 will then actuate arm 101 and tilt the arm 103 carrying the switch members 104 and 105. The circuit will first be closed through the magnet 106. Then magnet 106 is energized movement will be transmitted to the cross shaft 110 and the rocker arm 111 will be actuated to move the slide plate 113in under the magazine, thus preventing further release of can ends from the magazine.

At this moment there will be three can ends left on the table J, but the main feeder slide 20 will continue feeding them forwardly. The counting mechanism will continue functioning until the last can end has passed the liner. The ratchet wheel 99, together with the pawl 100, will continue the tilting of the arm 103, together with the switches and 104. The circuit through the switch 104 will then become closed and the magnet 55 will become energized.

Energization of the magnet 55 will attract the armature 54 and this will transmit movement through link 53 to the arm 62 thereby rocking shaft 51 which carries the dog 45. The dog 45 will thus swing out of engagement with the pawl 44, and as the latter is spring actuated it will swing outwardly and engage the shoulder 46 of the continuously running clutch member 41, thereby forming an interlock between the clutch members 41 and 43 so that motion is transmitted to the shaft 36a. The interlock between the clutch members 41 and 43 will not be broken until the magnet 55 releases the dog 45 and then not until the pawl 44 has come up to the position shown in Fig. 11. The shaft 36a in turn transmits movement through the gears 42 and 48 to the shaft 47 and as this carries the driving cam 49 of the Geneva movement, it will engage one of the slots in theeGeneva star 50 and transmit movement thereto. During the interval of time that the energization of the magnet 106 has stopped the feed of can ends, and the time that the magnet 55 has released the clutch dog 45 and the Geneva cam 49 has moved from the position shown in Fig. 9 to the point where it enters the slot in the Geneva star 50 in order to advance the table C, the can ends remaining on the table J will all be transferred and stacked on the table C. The ratchet wheel 99 will continue moving forward until the last can end has left the position 10a at t .e liner shown'in Fig. 4, and then there being no more can ends to lift the shaft 160, the ratchet wheel 99 will stop, leaving both switches 105 and 104 closed; the

switch 105 stopping the feed of can ends from .2

the magazine and the switch 104; keeping the dog out of alignment with the protruding end of the pawl 44;, thus keeping thetable C running. The Geneva cam 49 carried upon the shaft =17, engaging the Geneva star 50, will start moving the table C, and immediately the earn 118 carried by theshaft 47 will engage the arm 115 of the switch 117, open ing said switch, whereby both magnets 10S and become de-energized.

' The de-energization of the magnet 106 causes the return of the slide 1153, bringing back into operation the can end feeding mechanism, while the de-energization of the magnet 55 releases the dog 15, which returns again into alignment with the projecting end of the pawl 44, and is ready to break the interlock between the clutch members :3 and 41, when said pawl will come to the top, and thus stop the rotation of the shafts 36a 47 after they have made one complete revolution. The table will meanwhile rotate for magnets 55 and 106.

of a revolution, thus moving the completed stack of can ends out of alignment with the pivoted dog 31, and at the same time bring another drying compartment into receiving position.

The machine will again continue to feed, curl and line the can ends, and they will be delivered one by one to the table until the next stack is completed. The gear 99 will then have completed another revolution and the magnets will again be energized, causing the slide plate 113 to move in under the magazine 14 so as to prevent delivery of can ends while the table is again rotated for a part of a revolution to bring the last completed stack out of alignment with the feeding pawl 31, and to bring a new compartment into receivin position.

11 actual practice a completed stack remains within the drying chamber approximately thirty minutes. By that time the table has made one complete revolution and the stack which was first completed becomes exposed by passing beyond the rod indicated at 2, see Fig. 8. y

The dried stack may here be removed by hand and disposed of in any suitable manner, for instance, by being placed directly in packing cases or otherwise.

In Fig. 13 the, numerals 120 and 121 indicate the line wires whereby current is fed to the switches 104, 105 and 117, and to the A manually operated switch 122 for making or breaking the circuit when the machine is to be started or stopped is placed in the circuit and so is the telltale light, such as shown at 123. This light merely serves as a warning to indicate when a stack is completed and the table is to be rotated.

It is believed that the circuits are more or less self-explanatory, and a detailed descrip tion thereof is not essential.

' Having thus described our invention, what we claim and desire to secure by Letters Patentis v 1. In a machine of the character described a rotary supporting member having a plurality of can end stacking and supporting receivers .mounted. thereon, a can end magazine, means for releasing the can ends one by one, a compound can end liner, a main feeder adapted to remove the can ends when released and to deliver them to the compound liner, where the of the can end is filled, with a sealing compound, and means whereby the feeder removes the canends from the liner and delivers and stacks the ends inthe receivers carried. by the rotary supporting member. t

2. In a machine of the character described a supporting member having a plurality of can end stacking and. supporting receivers mounted thereon, a can end magazine, means 7 for releasing the can ends one by one, a compound can end liner, a main feeder adapted to remove the can ends when released and to deliver them to the compound liner where the rim of the can end is filled with a sealing compound, means whereby the feeder removes the can ends from the'liner and delivers and stacksthe ends in the receiverscarried by the supporting member, means for transmitting movement to the supporting member when a can end stack has been completed in a receiver so as to bring an adjacent receiver into alignment with the can end feeder, and means for rendering the can end magazine-feeder and the-liner inoperative during movement of the supporting member and the receivers carried thereby.

3. In a machine of the character described a supporting member having a plurality of can end stacking. and supporting receivers mounted thereon, a can end magazine, means for releasing the can ends one by one, a compound can end liner, a main feeder adapted to remove the can ends when released and to deliver them to the compound liner where the rim of the can endis filled with a sealing compound, means whereby the feeder removes the can ends from the liner and delivers and stacks the ends in the receivers carried by the supporting member, means for transmitting movement to the supporting member when a can end stack has been completed in a, receiver so as to bring an adjacent receiver into alignment with the can end feeder, means for rendering the can end magazine feeder and the liner inoperative during movement of the supporting member and the receivers carried thereby, and means for drying the sealing compound in the can ends when stacked in the receivers.

4. In amachine of the character described a table having a plurality of can end stacking, supporting and drying compartments formed'ithereon, a can end liner whereby a sealing compound is delivered to the peripheral flange of the can ends, a feeder for delivering. the can ends one by one to the liner, said feeder also removing the ends one by one from the liner, means cooperating with the feeder for delivering the can ends one by one to one compartment at atime, means whereby the can ends are stacked in the compartments, and means whereby the can end feeder and the liner are rendered inoperative when a predeterminednumber of can ends have been stacked in a compartment.

5. In a machine of the character described a table having a plurality of can end stacking, supporting and drying compartments formed thereon, a can end liner whereby a sealing compound is delivered to the peripheral flange of the can ends, a feeder for delivering the can ends one by one to the liner, said feeder also removing the ends one by one from the liner, means cooperating with the feeder'for delivering the can ends one by one to one compartment at a time, means whereby the can ends are stacked in the compartments, and means for transmitting a partial rotary movement to the table when a stack of can ends is completed, so as to bring an adjacent compartment into alignment with the can end feeder.

6. In a machine of the character described a table having a plurality of can end stacking, supporting and drying compartments formed thereon, a can end liner whereby a sealing compound is delivered to the peripheral flange of the can ends, a feeder for delivering the can ends one by one to the liner, said feeder also removing the ends one by one from the liner, means cooperating with the feeder for delivering the can ends one by one to one compartment at a time, means whereby the can ends are stacked in the compartments, means for transmitting a partial rotary movement to the table when a stack of can ends is completed, so as to bring an adjacent compartment into alignment with the can end feeder, and means whereby the can end feeder and the liner are rendered inoperative during the partial rotary movement of the table.

7. In a machine of the character described a table having a plurality of can end stacking, supporting and drying compartments formed thereon, a can end liner whereby a sealing compound is delivered to the peripheral flange of the can ends, a feeder for delivering the can ends one by one to the liner, said feeder also removing the ends one by one from the liner, means cooperating with the feeder for delivering the can ends one by one to one compartment at a time, means for transmitting a partial rotary movement to the table when astack of can ends is completed, so as to bring an adjacent compartment into alignment with the can end feeder, means whereby the can end feeder and the liner are rendered inoperative during the partial rotary movement of the table, and means whereby warm air is circulated through the compartments containing can end stacks so as'to dry the sealing compound with which the can ends are lined.

8. In a machine of the character described arotary supporting member having a plurality of can end stacking and supporting receivers mounted thereon, acan end liner, means for delivering can ends to said liner one'by one, and means for moving the can ends from the liner and arranging them in stacks on said rotary supporting member.

9. In a machine of the character described a table, means for supporting can ends in stacks on the table, means for lining the can ends with a sealing compound, feed means for delivering the can ends to and removing them from the lining means, means cooperating with the feeder for delivering the can ends to the table, and means rendering the feeder inoperative when a predetermined number of can ends have been'stacked on the table;

FRANK KRUEGER. HENRY DOUGLASS. 

